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- The average height and DBH of ? Fokienia hodginsii? in the mixed forest are 2 08 m and 1 50 cm greater than that in the pure forest,respectively. 结果表明,混交林中,福建柏的平均树高和平均胸径,分别比福建柏纯林大2?08m和1?50cm。
- The related factors in the mixed forest (mixture of Pinus tabulaeformis and Robinia pseu-doacacia) and pure forest (P. tabulaeformis) were compared. 摘要通过对比油松刺槐混交林与油松纯林内相关因素,研究其对赤松毛虫的自然控制。
- The dynamic uptrend of diversity and evenness indexes between mix forest and pure forest are analogical, and on the contrary it is different. 混交林中群落数量、丰富度及多样性指数多数月份高于纯林。
- Conclusions show that: Judging from water conservation and water use efficiency, mixed forest is better than pure forest, and in pure forest Kalopanax pictus>Koelreuteria panicutata. 混交林对水分的贮蓄和调节能力较强,但各林分供水性能差别不大。
- The results showed that the increments of tree height,DBH and tree volume of Chinese fir pure forest were similar to mixed forest in the first 4 years,but those of pure forest rapid fell later on. 结果表明,纯林杉木生长落后于混交林杉木。与纯林相比,混交林杉木16年生时单株材积增加了70.;10%25;
- It was pure luck that he was home when we called. 非常幸运,我们打电话时他在家里。
- Selaginella broadly distributes in the mixed and pure forests, and it holds an important position among understory vegetations. 卷柏是地被层的唯一植物,在侧柏纯林和混交林中分布都很广,在林下植物中占有重要地位。
- Acceding to the domestic and overseas experience, the technology and theory of approaching-nature forest management d the pure forests are discussed in the paper, to provide gist for restoring the ecological function and economic benefit of the community. 针对这些实际情况,本文依据国内外研究成果对云南松纯林近自然化改造的技术和理论进行了探讨,为恢复云南松群落的生态功能和经济功能提供依据。
- The forest will act as a defense against desert dust. 森林能起防御沙漠灰沙的作用。
- Comparison analysis of dominance between mixed and pure forest 关于混交林与纯林的比较优势分析
- I have the pure heart of a newborn baby. 我有一颗赤子之心。
- Study of Biomass Growth Model of Uniform Pure Forest 同龄纯林立木增长模型的研究
- We must not condemn her on pure supposition. 我们不能单凭猜测就谴责她。
- It is said that there are wolves in this forest. 据说这片森林里有狼。
- Don't believe what he's saying it's pure bunkum. 别相信他的话--纯粹是胡说八道。
- A large part of Africa is made up of thick forest. 非洲的大部分地区都是密林。
- A long hot bath can be pure luxury. 洗个痛快的热水澡可真是一种至高的享受。
- The fields were all covered with pure white snow. 白雪皑皑,铺满田野。
- There is a leafy forest in our hometown. 在我们的家乡有一片树叶茂密的森林。
- There is a pine forest near our house. 我们家附近有片松树林。